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Near San Francisco, where the vertically downward component of the earth's magnetic field is 4.7 multiply.gif 10-5 T, a car is traveling forward at 28 m/s. The width of the car is2.1 m.
(a) Find the emf induced between the two sides of the car.
V
(b) Which side of the car is positive-the driver's side or the passenger's side?
A cart of mass M = 1.6 kg can roll without friction on the level track. A light string draped over a light, frictionless pulley connects the cart to a hanger with mass m = 0.7 kg.
What were the initial charges on the spheres? Since one is negative and you cannot tell which is positive or negative, there are two solutions. Take the absolute value of the charges and enter the smaller value here.
When she tightens the string slightly, she hears 6 beats/s. What is the frequency of string now.
What capacitance must be used in this circuit if the time constant is to be 3.4 ms.
A ping-pong ball of mass 4 gm and traveling with a velocity of 4 m/s collides with stationary tennis ball of mass 5 gm. Calculate the magnitude of the velocity of the tennis ball after the collision
what is the dimension of gravitational force and what is the dimension of acceleration
The lab experiment is repeated with the same two glass plates but with a different human hair. Calculate the diameter of the hair
A uniform electric field of magnitude 271 V/m is directed in the negative x direction. A +12.7 ?C charge moves from the origin to the point (x, y) = (15.5cm, 46.0 cm). What was the change in the potential energy of this charge?
A projectile is launched with an initial speed of40.0 m/s at an angle of 35.0° above the horizontal. What is the projectile's velocity at the highest point of its trajectory
What should be the spring constant of a spring designed to bring a 1400 car to rest from a speed of 95 so that the occupants undergo a maximum acceleration of 5.
A permanent dipole is at rest at origin of a coordinate system with a random orientation. What is the equilibrium orientation of the dipole
A tennis ball rolls off the edge of a tabletop of height 0.850m above the floor and strikes the floor at a point a horizontal distance 1.80 m from the edge of the table. You can ignore air resistance. Find out the time of flight.
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